[Validity and reliability of the self-efficacy to regulate exercise scale in patients with metabolic syndrome].

OBJECTIVE: Self-efficacy refers to beliefs in individuals' own capacities to do something. With the intent of evaluate the validity and reliability, we investigated the psychometric properties of the Self-Efficacy to Regulate Exercise Scale (SERES) in patients with metabolic syndrome (MetS). METHODS: 135 participants with medical diagnosis of MetS took part in the study (Mage=55.5, SD=7.6). We investigated sociodemographic, psychological, and life-style variables. Participants were recruited at the Hospital Universitario Virgen de las Nieves (HUVN) in Granada (Spain) between 2013 and 2014. In order to characterise the sample, descriptive statistics were used. Factorial analysis, internal consistency and convergent reliability of the SERES were also calculated. Group differences were investigated using Student's t test. RESULTADOS: Extrajimos una solucion de 2 factores que explicaron el 72,7% de la varianza comun. Los valores de consistencia interna para la puntuacion total de la AEEF fueron de (0,925 y 0,864) segun los valores del alfa de Cronbach y del metodo de las dos mitades de Guttman, respectivamente. Las correlaciones de la AEEF con la frecuencia de la practica de ejercicios, la renuncia al sedentarismo, la asertividad, el estres y la ira fueron estadisticamente significativas. CONCLUSIONS: This was the first study to report on psychometric properties of the SERES. Results supported the adequacy of the measure for use with patients with MetS. SERES seemed to be useful in evaluating self-efficacy in relation to physical exercise, psychosocial, and lifestyle variables.